Image forming system including first storage that stores paper ejected after image formation processing and second storage that stores paper transferred from first storage, control method of image forming system, and program for allowing computer to execute control method

An image forming system includes: a first storage that stores paper ejected after image formation processing; a second storage that stores the paper transferred from the first storage; a hardware processor that controls an operation of the image forming system; and a notifier that notifies of a state of the image forming system, wherein the hardware processor determines whether the paper remains in the first storage, and allows the notifier to notify that the paper is left untaken based on determination that the paper remains in the first storage.